Question

Plzzz do 15&17 for me

Answer 1

Hi



here is your answer.


AMU :-
$atomic \: mass \: unit$

AMU is a 1/12 mass of carbon atom . It is denoted by amu or Amu.

It have value 1.660... kg. It have 6 proton and 6 neutron.




IUPAC :-
$international \: union \: for \: pure \: and \: applied \: chemistry$
Atomic mass of elements :-



Atomic mass of elements is defined as the

mass of chemical elements which is the sum

of proton , neutron and electron.






hope it helps you ☺

Answer 2

Amu:-atomic mass unit.

Because in lab the weighing is done on the basis of 1/12 part of carbon.

17• it is the mass of one atom

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